Go to this link and click on "Click to activate" to see if you are targeted for this offer.
If you have not yet, you must fist link your American Express Membership Rewards card to your Amazon account. Then check back after a few days to see if you have this offer.
This is a limited time offer. The promotion will end at 11:59 PT on 07/16/2019 or before. Amazon.com reserves the right to cancel or modify this offer at any time.